Aerospace / Military
Aerospace Series General Aviation Rod Ends Spherical Bearings Mil Spec Series Rod Ends Spherical Bearings Bushings Approved Part Numbers
Commercial / Industrial
Rod End Bearings Inch Rod Ends Metric Rod Ends Spherical Bearings Inch Spherical Bearings Metric Spherical Bearings
Technical Resources
Terms and Definitions Articles Technical Data FAQs Key Term Translation Custom Engineered Products
Online Catalog
Engineers power search our entire catalog of bearing and bushings, with access to every attribute and technical specification possible. View our online catalog...
Request Information
This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.
Unit of Measure

Key Dimensions

Cone Part Number

 N/A KM802048

Bore (d)

 N/A 1 5/8 in41.275 mm

Inner Ring Width (B)

 N/A 1.0100 in25.654 mm
Dynamic Radial Load Rating - 1M Revs (C1) 1 N/A 20600 lbf91700 N
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 5340 lbf23800 N
K Factor 3 N/A 1.07

Other Dimensions

Weight

 N/A 1.400 lb0.6 Kg
Effective Center Location4 N/A -0.12 in-3 mm
Max Shaft Fillet Radius5 N/A 0.140 in3.56 mm

Shaft Backing Shoulder Diameter - Frontface (da)

 N/A 1.99 in50.6 mm

Shaft Backing Shoulder Diameter - Backface (db)

 N/A 2.24 in57 mm

Cage Location rel. to BF (Aa)

 N/A 0.07 in1.8 mm

Cage Location rel. to FF (Ab)

 N/A 0.1 in2.5 mm

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)6 N/A 4990 lbf22200 N

Static Radial Load Rating (CO)

 N/A 25300 lbf112000 N

Factors

G1 Factor

 N/A 30.9

G2 Factor

 N/A 11.9
Geometry Factor (Cg)7 N/A 0.0899
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 2 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 3 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 4 Negative value indicates effective center inside cone backface.
  • 5 These maximum fillet radii will be cleared by the bearing corners.
  • 6 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
  • 7 Geometry constant for Lubrication Life Adjustment Factor a3l.